[src/trunk]: src/lib/libc/db/btree Do not respect TMPDIR when s[ug]id.

[groo <groo%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d55cc3329717
branches:  trunk
changeset: 525739:d55cc3329717
user:      groo <groo%NetBSD.org@localhost>
date:      Tue Apr 16 19:00:45 2002 +0000

description:
Do not respect TMPDIR when s[ug]id.
from xs%kittenz.org@localhost

diffstat:

 lib/libc/db/btree/bt_open.c |  18 ++++++++++++------
 1 files changed, 12 insertions(+), 6 deletions(-)

diffs (43 lines):

diff -r ceb8007a964e -r d55cc3329717 lib/libc/db/btree/bt_open.c
--- a/lib/libc/db/btree/bt_open.c       Tue Apr 16 18:39:13 2002 +0000
+++ b/lib/libc/db/btree/bt_open.c       Tue Apr 16 19:00:45 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bt_open.c,v 1.14 2002/01/22 20:41:22 thorpej Exp $     */
+/*     $NetBSD: bt_open.c,v 1.15 2002/04/16 19:00:45 groo Exp $        */
 
 /*-
  * Copyright (c) 1990, 1993, 1994
@@ -41,7 +41,7 @@
 #if 0
 static char sccsid[] = "@(#)bt_open.c  8.10 (Berkeley) 8/17/94";
 #else
-__RCSID("$NetBSD: bt_open.c,v 1.14 2002/01/22 20:41:22 thorpej Exp $");
+__RCSID("$NetBSD: bt_open.c,v 1.15 2002/04/16 19:00:45 groo Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -397,14 +397,20 @@
 tmp()
 {
        sigset_t set, oset;
-       int fd;
+       int fd, len;
        char *envtmp;
        char path[PATH_MAX];
 
-       envtmp = getenv("TMPDIR");
-       (void)snprintf(path,
+       if (issetugid())
+               envtmp = NULL;
+       else
+               envtmp = getenv("TMPDIR");
+
+       len = snprintf(path,
            sizeof(path), "%s/bt.XXXXXX", envtmp ? envtmp : _PATH_TMP);
-
+       if (len >= sizeof(path))
+               return -1;
+       
        (void)sigfillset(&set);
        (void)sigprocmask(SIG_BLOCK, &set, &oset);
        if ((fd = mkstemp(path)) != -1)